What Is a Solid?

What is a solid? In the simplest sense, a solid is a physical substance that does not have long-range order in its constituent organization. Instead, it has interconnected solid structural blocks in its internal structure. Because of this, amorphous solids are more soluble than crystalline ones. They are also called conductors. There are many definitions of solid. Let’s look at some of them. Listed below are some of the most common examples.

Physical properties

Solids are materials with definite volume and mass. They also have high density and incompressibility. Solids can either be crystalline, like table salt, or amorphous, like glass. Many elements exist in solid form at room temperature. Here are a few properties of solids that will help you understand what they are and what makes them unique. We’ll explore these properties further in this article. Listed below are some of the more important characteristics of solids.


The word solid has many different meanings. It means “firm” and is related to the Greek word holos, which means “safe.” It also has many etymological roots. Solid has been associated with the word soldier and solicitor. Today, solid is used in a variety of contexts, from everyday use to scientific research. To learn more about its origins, continue reading. The following is a brief etymology of solid.


Solids and liquids are two different types of matter. A solid is a material that holds its shape when the conditions surrounding it are right, and it does not change shape easily. A liquid, on the other hand, is a substance that is easily movable and usually takes the shape of the container it is in. Both types of matter have a unique set of properties, and the way they change shape depends on the circumstances in which they are in contact with them.


Sublimation of solids is a process whereby solids are converted to gaseous state under certain pressure and temperature. In general, compounds exhibiting sublimation properties have weak intermolecular forces in the solid state. Examples of such compounds are those with spherical and symmetrical structures, as illustrated in Figure 6.28. Although the process is not always successful, it is generally possible to transform one solid into another.

Crystalline solids

A crystalline solid has a highly regular arrangement of atoms and molecules, forming a regular crystal lattice. Changes in these arrangements alter the properties and appearance of the solid. Crystalline solids can be arranged in several ways, and they are grouped into four categories: covalent, ionic, molecular, and metallic. Examples of crystalline solids include sodium chloride, sodium nitrate, and lithium carbonate.